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nv2a: Transform clear y-coord by abs. surface height

This commit is contained in:
Matt Borgerson 2021-07-01 22:36:56 -07:00 committed by mborgerson
parent e0f83c8be7
commit 4716b7b980
1 changed files with 22 additions and 24 deletions
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46
hw/xbox/nv2a/pgraph.c
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@ -3073,39 +3073,37 @@ DEF_METHOD(NV097, CLEAR_SURFACE)
}
pgraph_update_surface(d, true, write_color, write_zeta);
glEnable(GL_SCISSOR_TEST);
/* FIXME: Needs confirmation */
unsigned int xmin =
GET_MASK(pg->regs[NV_PGRAPH_CLEARRECTX], NV_PGRAPH_CLEARRECTX_XMIN);
unsigned int xmax =
GET_MASK(pg->regs[NV_PGRAPH_CLEARRECTX], NV_PGRAPH_CLEARRECTX_XMAX);
unsigned int ymin =
GET_MASK(pg->regs[NV_PGRAPH_CLEARRECTY], NV_PGRAPH_CLEARRECTY_YMIN);
unsigned int ymax =
GET_MASK(pg->regs[NV_PGRAPH_CLEARRECTY], NV_PGRAPH_CLEARRECTY_YMAX);
unsigned int xmin = GET_MASK(pg->regs[NV_PGRAPH_CLEARRECTX],
NV_PGRAPH_CLEARRECTX_XMIN);
unsigned int xmax = GET_MASK(pg->regs[NV_PGRAPH_CLEARRECTX],
NV_PGRAPH_CLEARRECTX_XMAX);
unsigned int ymin = GET_MASK(pg->regs[NV_PGRAPH_CLEARRECTY],
NV_PGRAPH_CLEARRECTY_YMIN);
unsigned int ymax = GET_MASK(pg->regs[NV_PGRAPH_CLEARRECTY],
NV_PGRAPH_CLEARRECTY_YMAX);
NV2A_DPRINTF(
"------------------CLEAR 0x%x %d,%d - %d,%d %x---------------\n",
parameter, xmin, ymin, xmax, ymax,
d->pgraph.regs[NV_PGRAPH_COLORCLEARVALUE]);
unsigned int scissor_x = xmin;
unsigned int scissor_y = pg->surface_binding_dim.clip_height
+ pg->surface_binding_dim.clip_y - ymax - 1;
unsigned int scissor_width = xmax - xmin + 1;
unsigned int scissor_height = ymax - ymin + 1;
pgraph_apply_anti_aliasing_factor(pg, &scissor_x, &scissor_y);
unsigned int scissor_width = xmax - xmin + 1,
scissor_height = ymax - ymin + 1;
pgraph_apply_anti_aliasing_factor(pg, &xmin, &ymin);
pgraph_apply_anti_aliasing_factor(pg, &scissor_width, &scissor_height);
ymin = pg->surface_binding_dim.height - (ymin + scissor_height);
/* FIXME: Should this really be inverted instead of ymin? */
glScissor(scissor_x, scissor_y, scissor_width, scissor_height);
NV2A_DPRINTF("Translated clear rect to %d,%d - %d,%d\n", xmin, ymin,
xmin + scissor_width - 1, ymin + scissor_height - 1);
/* FIXME: Respect window clip?!?! */
NV2A_DPRINTF("------------------CLEAR 0x%x %d,%d - %d,%d %x---------------\n",
parameter, xmin, ymin, xmax, ymax, d->pgraph.regs[NV_PGRAPH_COLORCLEARVALUE]);
glEnable(GL_SCISSOR_TEST);
glScissor(xmin, ymin, scissor_width, scissor_height);
/* Dither */
/* FIXME: Maybe also disable it here? + GL implementation dependent */
if (pg->regs[NV_PGRAPH_CONTROL_0] &
NV_PGRAPH_CONTROL_0_DITHERENABLE) {
if (pg->regs[NV_PGRAPH_CONTROL_0] & NV_PGRAPH_CONTROL_0_DITHERENABLE) {
glEnable(GL_DITHER);
} else {
glDisable(GL_DITHER);